Some heart-stopping video now. Made even more startling by the fact that the driver behind the wheel is a prominent doctor, apparently high on booze and drugs and dressed for surgery. Abc's rob nelson has the details. Reporter: Video from this fixed traffic camera, shows a driver seemingly out of control. Watch this car barrel out of a grocery store parking lot and straight into traffic. Watch again, slowed down. You see the car travel over the median, going airborne before violently striking a car, which then slams into a truck. I got hammered. I thought it was the end of the world. I thought a bomb went off inside the car. Reporter: Behind the wheel, police say, was this woman, 57-year-old kristen howard, who prosecutors say was drunk and high on drugs. Police say when howard was stopped, she was wearing scrubs. She first told them she was on her way to the hospital. The 78-year-old man she allegedly hit, taken, ironically enough, taken to the same e.R. Where police say howard worked. Police say they found prescription drugs in howard's car. Prescriptions she apparently wrote for herself. Prescribed from dr. Howard to kristen howard. That certainly raises flags, your honor. Reporter: Howard has pleaded not guilty to seven charges, including driving under the influence, and drug violations. On monday, her attorney told a judge howard has been struggling with personal issues. Has a reputation for trying to save lives. And was given the award of doctor of the year, at wesley hospital in 2009. Reporter: Howard was released on her own recognizance but was relieved of her hospital duties. For "good morning america," rob nelson, abc news, new york. A lot of luck involved in a lot of people not getting hurt

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